The vehicle has a number of computers that record information about the vehicle’s performance and how it is driven. For example, the vehicle uses computer modules to monitor and control engine and transmission performance, to monitor the conditions for airbag deployment and deploy them in a crash, and, if equipped, to provide antilock braking to help the driver control the vehicle. These modules may store data to help the dealer technician service the vehicle. Some modules may also store data about how the vehicle is operated, such as rate of fuel consumption or average speed. These modules may retain personal preferences, such as radio presets, seat positions, and temperature settings.
Reporting Safety Defects to General Motors
Event Data RecordersHeadlamp Aiming
Visual Aiming Preparation Procedure
Note: Some state and local laws specify requirements for headlamp
aim. Comply with all of these laws when performing any headlamp aiming operations.
Headlamp aim should be checked:
When a new headlamp capsule is installed.
If ser ...
Engine Coolant Fan Replacement (LDE/LUW)
Removal Procedure
Unclip transmission cooler lines from shroud if equipped.
Unclip radiator surge tank outlet hose from fan shroud.
Disconnect the engine coolant fan wiring harness.
Note: You stand against driving direction.
Unclip the engine coolant fan ...
Range Selector Lever Cable Adjustment
Note: Adjust the automatic transmission range selector cable while
the transmission and the gear selector are in the Park position only. Failure
to do so may cause mis-adjustment.
Set the park brake and chock the wheels.
Verify the transmission range select lever is in the par ...